Update README

Author: cbullinger

usage-examples/go/atlas-sdk-go/CHANGELOG.md

@@ -2,6 +2,10 @@
 
 Notable changes to the project.
 
+## v1.2 (2025-08-17)
+### Added
+- Example scripts for scaling and archiving clusters.
+
 ## v1.1 (2025-06-17)
 ### Added
 - Example scripts for fetching cross-organization billing information.

usage-examples/go/atlas-sdk-go/README.md

@@ -16,8 +16,8 @@ Currently, the repository includes examples that demonstrate the following:
 - Download logs for a specific host
 - Pull and parse line-item-level billing data
 - Return all linked organizations from a specific billing organization
-- Get historical invoices for an organization 
-- Programmatically manage Atlas resources
+- Get historical invoices for an organization
+- Programmatically archive Atlas cluster data
 
 As the Architecture Center documentation evolves, this repository will be updated with new examples 
 and improvements to existing code. 
@@ -28,12 +28,15 @@ and improvements to existing code.
 .
 ├── examples             # Runnable examples by category
 │   ├── billing/
-│   └── monitoring/
+│   ├── monitoring/
+│   └── performance/
 ├── configs              # Atlas configuration template
 │   └── config.json
 ├── internal             # Shared utilities and helpers
+│   ├── archive/
 │   ├── auth/
 │   ├── billing/
+│   ├── clusters/
 │   ├── config/
 │   ├── data/
 │   ├── errors/
@@ -56,10 +59,13 @@ and improvements to existing code.
 
 ## Setting Environment Variables
 
-1. Create a `.env` file in the root directory with your MongoDB Atlas service account credentials:
+1. Create a `.env.<environment>` file in the root directory with your MongoDB Atlas service account credentials. For example, to create a `.env.development` file for your dev environment: 
    ```dotenv
    MONGODB_ATLAS_SERVICE_ACCOUNT_ID=your_service_account_id
    MONGODB_ATLAS_SERVICE_ACCOUNT_SECRET=your_service_account_secret
+   ATLAS_DOWNLOADS_DIR="tmp/atlas_downloads"
+   CONFIG_PATH="/configs"
+   APP_ENV="dev"
    ```
    > **NOTE:** For production, use a secrets manager (e.g. HashiCorp Vault, AWS Secrets Manager) 
    > instead of environment variables. 
@@ -121,6 +127,13 @@ go run examples/monitoring/metrics_disk/main.go
 go run examples/monitoring/metrics_process/main.go
 ```
 
+### Performance
+
+#### Archive Cluster Data
+```bash
+go run examples/performance/archiving/main.go
+```
+
 ## Changelog
 
 For list of major changes to this project, see [CHANGELOG](CHANGELOG.md).